제출 #652908

#제출 시각아이디문제언어결과실행 시간메모리
652908coding_snorlax기지국 (IOI20_stations)C++14
컴파일 에러
0 ms0 KiB
//#include "stations.h" //[1,2,3,4,5,6,7,8] //[0,1,1,2,2,3,3,4] #include<bits/stdc++.h> using namespace std; vector<int> G[1005]; int vis[1005]={0}; int tree_order[1005]; int now_order=0; void dfs(int node){ vis[node]=1; tree_order[node]=now_order; now_order++; for(int i:G[node]){ if(!vis[i]){ dfs(i); } } return; } void get_graph(vector<int> G1,vector<int> G2){ for(int i=0;i<1005;i++){ G[i].clear(); } for(int i=0;i<(int)G1.size();i++){ G[G1[i]].push_back(G2[i]); G[G2[i]].push_back(G1[i]); } int start; for(int i=0;i<(int)G1.size()+1;i++){ if((int)G[i].size()==1) start=i; } for(int i=0;i<1005;i++){ vis[i]=0; now_order=0; } dfs(start); return; } vector<int> label(int n,int k,vector<int> u,vector<int> v){ for(int i=0;i<1003;i++){ G[i+1].push_back(i/2); G[i/2].push_back(i+1); } vector<int> Answer; for(int i=0;i<n;i++){ Answer.push_back(i); } return Answer; } //s/1000 is node, s%1000 is connect place int find_next_station(int s,int t,vector<int> c){ if ((int)c.size()==1) return c[0]; else{ if(s<t) return c[1]; else return c[0]; } } int main(){ vector<int> List1={0,1,2,3,4}; vector<int> List2={2,0,3,4,5}; label(6,10,List1,List2); for(int i=0;i<6;i++){ cout<<tree_order[i]<<" "; } vector<int> q={0,2}; cout<<find_next_station(1,3,q); //find_next_startion() }

컴파일 시 표준 에러 (stderr) 메시지

stations.cpp: In function 'void get_graph(std::vector<int>, std::vector<int>)':
stations.cpp:37:8: warning: 'start' may be used uninitialized in this function [-Wmaybe-uninitialized]
   37 |     dfs(start);
      |     ~~~^~~~~~~
/usr/bin/ld: /tmp/ccvCFk6j.o: in function `main':
stub.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccLw4tQj.o:stations.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status